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[Help] Thinkpad T540p lock screen and sleep problem

RehabMan

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Joined
May 3, 2012
Messages
188,465
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
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2880x1620 is a bit of a strange resolution for internal laptop display.
Are you certain?

But if so, it borders on HiDPI, which will require larger DVMT-prealloc (typically 128mb), framebuffer patch to match, WhateverGreen.kext with -cdfon kernel flag.
 
Joined
Apr 9, 2018
Messages
12
Motherboard
Lenovo Thinkpad T540P-2.82-CLOVER
CPU
i5 4300M
Graphics
HD 4600 + GT 730, 2880x1620
2880x1620 is a bit of a strange resolution for internal laptop display.
Are you certain?

But if so, it borders on HiDPI, which will require larger DVMT-prealloc (typically 128mb), framebuffer patch to match, WhateverGreen.kext with -cdfon kernel flag.

Yes, I am certain. Its a 3K Display. The first one i ever saw.

Let me check WG.kext with the flag
 

RehabMan

Moderator
Joined
May 3, 2012
Messages
188,465
Motherboard
Intel DH67BL
CPU
i7-2600K
Graphics
HD 3000
Mac
  1. MacBook Air
Mobile Phone
  1. iOS
Yes, I am certain. Its a 3K Display. The first one i ever saw.

Let me check WG.kext with the flag

Must also have 128mb DVMT-prealloc and framebuffer patches to match.
Refer to config_UHD.plist in my y50 github repo for hints.
 
Joined
May 4, 2016
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29
Motherboard
Asus Maximus X
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Intel Core i7 8700K
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Nvidia GTX 1070
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Classic Mac
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  2. iOS
Yes, I am certain. Its a 3K Display. The first one i ever saw.

Let me check WG.kext with the flag
Hey bro i also have the f**in 3k Display and got my Laptop booted the last Time on Sierra... since then tried to get it to work for like 80 hours and finally gave up like 6 months ago... is yours working? If so could you tell me about your config and kexts? Do you have unlocked bios? I do so but i just couldnt get it to work. The optimus gpu and the 4 series intel cpu is just like seriously worst case
 
Joined
Oct 12, 2019
Messages
1
Motherboard
W541
CPU
i7-4910MQ
Graphics
HD4600+K2100M
I tried on my W541 to use nosleep utility 1.5.1, and found out:
  • when closing the lid, the 3k display goes black
  • no sleep while the lid is closed
  • screen wake when lid open again (it doesn't go to black screen or flicker screen with black background)
  • sleep from menu the doesn't work (have to use hibernate 25, and close the lid before system power down is completed)
 
Last edited:
Joined
May 18, 2018
Messages
4
Motherboard
thinkpad t540p
CPU
intel I-7 4300MQ
Graphics
Intel HD4600
Hallo,
Everything is working on my lenovo t540p except display off for long time. Everytime I close display for 1-2 minutes and open it again it works fine but if it is closed for longer it stays black. Here is my efi folder attached. Please for a little help.
 

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Joined
May 18, 2018
Messages
4
Motherboard
thinkpad t540p
CPU
intel I-7 4300MQ
Graphics
Intel HD4600
Has anybody solve the sleep problem or not?
 
Joined
Sep 7, 2020
Messages
1
Motherboard
Thinkpad t540p (clover)
CPU
i74700mq
Graphics
hd4600+gt730m 1920*1080
Hallo,
Everything is working on my lenovo t540p except display off for long time. Everytime I close display for 1-2 minutes and open it again it works fine but if it is closed for longer it stays black. Here is my efi folder attached. Please for a little help.
what`s the macos version your device run, i want to replace my efi
 

Feartech

Moderator
Joined
Aug 3, 2013
Messages
19,745
Motherboard
Asus N752VX-OpenCore
CPU
i7-6700HQ / HM170
Graphics
HD 530 1920 x 1080
Mac
  1. iMac
Mobile Phone
  1. iOS
what`s the macos version your device run, i want to replace my efi
please read the faq for proper hardware profile setup:
 
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